Nera River

The Nera River is a 72-mile long tributary of the Tiber River, flowing almost entirely in the region of Umbria, Italy.

History
A tributary of the Tevere (Tiber), this 116 kilometre river flows almost entirely in Umbria, Italy. By 1503, there were several factories in use by the Papal States to manufacture special war machines, the Flying Machines. That year, Ezio Auditore da Firenze (the leader of the Roman Resistance) to the House of Borgia) used a flying machine and destroyed the factories and Papal carts carrying pieces of the machines. Today, it is known to be a spot for some spectacular fly fishing.